Abstract
When the electric-field-gradient (efg) tensor at the site of a quadrupolar nucleus undergoes a substantial change at an order-disorder phase transition (temperature=TC), a very small admixture of the low-temperature order parameter into the high temperature phase can substantially influence the lineshape. Clear evidence of this effect is present in some crystals to temperatures T>3TC. It is shown that this is not an effect associated only with regions near an impurity, but is a bulk phenomenon. Temperature dependence of the lineshape above TC is related to the order parameter admixture
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References
John L. Bjorkstam, To be published in Ferroelectrics.
R. Blinc and J.L. Bjorkstam, Phvs. Rev.Letters, 23, 788 (1969).
R.E. Burgess, Can. J. Physics. 36, 1569 (1958).
L. Godefroy, J. de Physique, 33, C2 - 44 (1972).
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© 1990 Springer-Verlag Berlin Heidelberg
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Bjorkstam, J.L. (1990). NMR/NQR Studies of Phase-Transition Precursors. In: Mehring, M., von Schütz, J.U., Wolf, H.C. (eds) 25th Congress Ampere on Magnetic Resonance and Related Phenomena. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-76072-3_201
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DOI: https://doi.org/10.1007/978-3-642-76072-3_201
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